201 lines
6.9 KiB
Bash
Executable File
201 lines
6.9 KiB
Bash
Executable File
#!/bin/sh
|
||
# Notes {{{
|
||
# Extract Debian ISO, add a preseed file and rebuild an ISO.
|
||
# At the end, mounting or extracting the iso use the same disk space, but
|
||
# mount require root permissions, so i choose to extract the iso.
|
||
# }}}
|
||
|
||
# Test args {{{
|
||
case $# in
|
||
1 )
|
||
PRESEED_FILE="${1}"
|
||
TEMP_DIR=$(mktemp --directory -t -- new-preseed-debian-iso-XXXXXX.tmp)
|
||
;;
|
||
2 )
|
||
PRESEED_FILE="${1}"
|
||
USER_TEMP_DIR="${2}"
|
||
## Check user temp dir argument
|
||
if [ ! -d "${USER_TEMP_DIR}" ]; then
|
||
printf '%b\n' "ERROR : The second argument should be the path to a directory."
|
||
exit 1
|
||
fi
|
||
TEMP_DIR=$(mktemp --directory --tmpdir="${USER_TEMP_DIR}" -- new-preseed-debian-iso-XXXXXX.tmp)
|
||
;;
|
||
* )
|
||
printf '%b\n' "Usage :"
|
||
printf '%b\n' "$(basename ${0}) PRESEED_FILE_PATH [TEMP_DIR]"
|
||
printf '%b\n' "-------"
|
||
printf '%b\n' "PRESEED_FILE_PATH : Required"
|
||
printf '%b\n' "Should be the absolut path to the preseed file you want to add to the ISO."
|
||
printf '%b\n' "-------"
|
||
printf '%b\n' "TEMP_DIR : Optionnal"
|
||
printf '%b\n' "If you want to store temporary files and final ISO in a specific directory."
|
||
printf '%b\n' "Note : This script require ISO size × 2 (eg for DVD. 3.4GB × 2)."
|
||
printf '%b\n' "Otherwise \$TMPDIR will be used."
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
## Check preseed argument
|
||
if [ ! -f "${PRESEED_FILE}" ]; then
|
||
printf '%b\n' "ERROR : The first argument should be the path to preseed file to add."
|
||
exit 1
|
||
fi
|
||
# }}}
|
||
|
||
# Vars {{{
|
||
## Debian release to use
|
||
### Can be stretch, stable, buster, testing, sid or unstable
|
||
DEBIAN_VERSION_NAME="stretch"
|
||
|
||
## ISO to download and use
|
||
### Can be :
|
||
### dvd
|
||
### net, netinst
|
||
### non-free, firm, firmware
|
||
### mini
|
||
DEBIAN_ISO_TYPE="firm"
|
||
|
||
# Define URL according to specified release name {{{
|
||
case "${DEBIAN_VERSION_NAME}" in
|
||
"stable" | "stretch" )
|
||
DEBIAN_VERSION_NB="9.6.0"
|
||
|
||
DEBIAN_ISO_DVD_URL="https://cdimage.debian.org/debian-cd/current/amd64/iso-dvd/debian-${DEBIAN_VERSION_NB}-amd64-DVD-1.iso"
|
||
DEBIAN_ISO_NETINST_URL="https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-${DEBIAN_VERSION_NB}-amd64-netinst.iso"
|
||
DEBIAN_ISO_NONFREE_URL="http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/archive/9.7.0+nonfree/amd64/iso-cd/firmware-9.7.0-amd64-netinst.iso"
|
||
DEBIAN_ISO_MINI_URL="http://ftp.fr.debian.org/debian/dists/${DEBIAN_VERSION_NAME}/main/installer-amd64/current/images/netboot/mini.iso"
|
||
;;
|
||
"testing" | "buster" | "unstable" | "sid")
|
||
DEBIAN_ISO_DVD_URL="https://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-dvd/debian-testing-amd64-DVD-1.iso"
|
||
DEBIAN_ISO_NETINST_URL="https://cdimage.debian.org/cdimage/daily-builds/daily/current/amd64/iso-cd/debian-testing-amd64-netinst.iso"
|
||
DEBIAN_ISO_NONFREE_URL="http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/weekly-builds/amd64/iso-cd/firmware-testing-amd64-netinst.iso"
|
||
DEBIAN_ISO_MINI_URL="http://ftp.fr.debian.org/debian/dists/${DEBIAN_VERSION_NAME}/main/installer-amd64/current/images/netboot/mini.iso"
|
||
;;
|
||
* )
|
||
printf '%b\n' "Please define a correct Debian release name according to :"
|
||
printf '%b\n' "stable, buster, testing, sid or unstable"
|
||
printf '%b\n' "${DEBIAN_VERSION_NAME} does not seems to be correct."
|
||
exit 1
|
||
;;
|
||
esac
|
||
# }}}
|
||
# Define ISO type to use {{{
|
||
case "${DEBIAN_ISO_TYPE}" in
|
||
dvd )
|
||
USE_DEBIAN_ISO="${DEBIAN_ISO_DVD_URL}"
|
||
;;
|
||
net | netinst )
|
||
USE_DEBIAN_ISO="${DEBIAN_ISO_NETINST_URL}"
|
||
;;
|
||
non-free | firm | firmware )
|
||
USE_DEBIAN_ISO="${DEBIAN_ISO_NONFREE_URL}"
|
||
;;
|
||
mini )
|
||
USE_DEBIAN_ISO="${DEBIAN_ISO_MINI_URL}"
|
||
;;
|
||
* )
|
||
printf '%b\n' "Please define a correct ISO type according to :"
|
||
printf '%b\n' "dvd, net, netinst or mini"
|
||
exit 1
|
||
;;
|
||
esac
|
||
# }}}
|
||
|
||
## Temp directories according to $TEMP_DIR
|
||
TEMP_ISO_DIR="${TEMP_DIR}/extracted-iso"
|
||
TEMP_INITRD_DIR="${TEMP_DIR}/initrd"
|
||
|
||
DEBIAN_DL_ISO_PATH="${TEMP_DIR}/debian.iso"
|
||
DEBIAN_PRESEED_ISO_PATH="$(dirname ${TEMP_DIR})/preseed-debian-${DEBIAN_VERSION_NAME}-amd64.iso"
|
||
# }}}
|
||
|
||
# Pre-requisites {{{
|
||
if [ ! $(command -v 7z) ]; then
|
||
printf '%b\n' "ERROR : Please install '7z' bin :\\nsudo apt install p7zip-full"
|
||
exit 1
|
||
fi
|
||
if [ ! $(command -v gzip) ]; then
|
||
printf '%b\n' "ERROR : Please install 'gzip' bin :\\nsudo apt install gzip"
|
||
exit 1
|
||
fi
|
||
if [ ! $(command -v xorriso) ]; then
|
||
printf '%b\n' "ERROR : Please install 'xorriso' bin :\\nsudo apt install xorriso"
|
||
exit 1
|
||
fi
|
||
if [ ! -f /usr/lib/ISOLINUX/isohdpfx.bin ]; then
|
||
printf '%b\n' "ERROR : Please install 'isolinux' package :\\nsudo apt install isolinux"
|
||
exit 1
|
||
fi
|
||
# }}}
|
||
|
||
# Download and extract ISO {{{
|
||
wget -q "${USE_DEBIAN_ISO}" -O "${DEBIAN_DL_ISO_PATH}"
|
||
command 7z x -o"${TEMP_ISO_DIR}" -- "${DEBIAN_DL_ISO_PATH}" > /dev/null
|
||
rm -rf -- "${DEBIAN_DL_ISO_PATH}"
|
||
## Ensure to have the write permission on the extracted folder
|
||
chmod 0700 -- "${TEMP_ISO_DIR}"
|
||
# }}}
|
||
# Manage initrd.gz file {{{
|
||
mkdir -- "${TEMP_INITRD_DIR}"
|
||
## Exclude initrd.gz files from xen and gtk directories
|
||
INITRD_GZ_PATH=$(find "${TEMP_ISO_DIR}" -type f \( -path '*xen*' -o -path '*gtk*' \) -prune -o -name "initrd.gz" -print -quit)
|
||
|
||
## Copy it to a directory
|
||
cp -- "${INITRD_GZ_PATH}" "${TEMP_INITRD_DIR}" || exit 2
|
||
|
||
cd -- "${TEMP_INITRD_DIR}" > /dev/null || exit 2
|
||
## Uncompress initrd.gz then delete it
|
||
gunzip < initrd.gz | cpio --extract --quiet --make-directories --no-absolute-filenames >> /dev/null
|
||
rm -f -- initrd.gz
|
||
|
||
## Add preseed file
|
||
cp -- "${PRESEED_FILE}" preseed.cfg || exit 2
|
||
|
||
## Recompress to initrd.gz and move it back to the extracted files for ISO
|
||
find . -not -name initrd.gz | cpio --format=newc --create --quiet | gzip --best > initrd.gz
|
||
cp -- initrd.gz "${INITRD_GZ_PATH}" || exit 2
|
||
|
||
## Go back to previous directory and remove no longer useful files
|
||
cd - > /dev/null || exit 2
|
||
rm -rf -- "${TEMP_INITRD_DIR}"
|
||
|
||
## Fix permissions in install directory
|
||
chmod -w -R -- $(dirname -- "${INITRD_GZ_PATH}")
|
||
# }}}
|
||
# Generate new md5sum {{{
|
||
## Ensure to have the write permission on the iso folder
|
||
chmod 0700 -- "${TEMP_ISO_DIR}"
|
||
cd -- "${TEMP_ISO_DIR}" > /dev/null || exit 2
|
||
## Exclude some unwanted files
|
||
find . -follow -type f -not \( -name "md5sum.txt" -o -name 'mkisofs' -o -name 'Bootable_NoEmulation.img' -o -path '*isolinux*' \) -exec md5sum {} \; > ./md5sum.txt
|
||
## Fix md5sum.txt permissions
|
||
chmod -w -- md5sum.txt
|
||
cd - > /dev/null || exit 2
|
||
# }}}
|
||
# Generate new bootable iso {{{
|
||
if [ -d "${TEMP_ISO_DIR}/isolinux" ] ; then
|
||
xorriso -as mkisofs -o "${DEBIAN_PRESEED_ISO_PATH}" \
|
||
-quiet -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
|
||
-c isolinux/boot.cat -b isolinux/isolinux.bin -no-emul-boot \
|
||
-boot-load-size 4 -boot-info-table "${TEMP_ISO_DIR}"
|
||
else
|
||
## For mini.iso creation
|
||
xorriso -as mkisofs -o "${DEBIAN_PRESEED_ISO_PATH}" \
|
||
-quiet -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
|
||
-c boot.cat -b isolinux.bin -no-emul-boot \
|
||
-boot-load-size 4 -boot-info-table "${TEMP_ISO_DIR}"
|
||
fi
|
||
|
||
## Then remove temp iso directory
|
||
chmod u+w -R -- "${TEMP_ISO_DIR}"
|
||
rm -rf -- "${TEMP_ISO_DIR}"
|
||
|
||
# }}}
|
||
|
||
rmdir -- "${TEMP_DIR}"
|
||
|
||
printf '%b\n' "The new ISO image is available : ${DEBIAN_PRESEED_ISO_PATH}"
|
||
|
||
exit 0
|